The crankshaft pulley assembly is a critical component that drives your engine’s auxiliary systems and maintains precise timing for optimal performance. The 1000158765 Crankshaft Pulley Assembly from HOWO is engineered to deliver exceptional strength, vibration damping, and a perfect factory fit, ensuring that your engine operates smoothly, efficiently, and reliably under the most demanding conditions. As a vital Howo/Sitrak truck parts component, this pulley assembly is manufactured from high‑grade steel with a precision‑machined surface and a durable corrosion‑resistant coating, providing long‑lasting performance and consistent belt alignment. Whether you are replacing a worn pulley or performing a full engine rebuild, the 1000158765 guarantees factory‑spec timing accuracy, reduced belt wear, and extended engine life – making it the trusted choice for professional workshops and fleet operators worldwide.
The crankshaft pulley, often referred to as the harmonic balancer, serves two essential functions: it drives the accessory belts (alternator, water pump, power steering, and air conditioning) and it dampens torsional vibrations from the crankshaft. The 1000158765 is specifically designed to maintain perfect alignment and balance, ensuring that the belts run smoothly without slipping or excessive wear. A damaged or worn pulley can lead to belt misalignment, premature component failure, and even catastrophic engine damage. HOWO has engineered this pulley assembly with a precision‑machined outer ring, a high‑quality elastomer damper, and a balanced hub that effectively absorbs crankshaft oscillations. This results in reduced stress on the front main bearing, quieter operation, and improved overall engine longevity. With the 1000158765, you ensure that your engine’s accessory drive system operates at peak efficiency and reliability.
Precision Timing
Accurate Alignment
Vibration Damping
Smooth Operation
OEM Fit
Exact Replacement
High Strength
Durable Steel
The 1000158765 crankshaft pulley assembly is manufactured to the highest OEM standards, incorporating advanced materials and precision engineering. Below are the complete technical specifications for this essential engine component.
| Parameter | Specification | Detail |
|---|---|---|
| OEM Number | 1000158765 | Exact Match |
| Part Name | Crankshaft Pulley Assembly | Genuine HOWO |
| Brand | HOWO | Original Equipment |
| Application | HOWO T7H / A7 / MC11/MC13 | Engine front end |
| Material | High‑grade steel (ductile iron) | Corrosion‑resistant coating |
| Outer Diameter | 160 mm | Precision ground |
| Belt Groove Type | 8‑ribbed (serpentine) | Standard |
| Centre Bore | 45 mm | Keyway included |
| Elastomer Damping | Integrated rubber ring | Vibration reduction |
| Max Torque Capacity | 2000 N·m | Heavy‑duty |
| Weight | 2.3 kg | Complete assembly |
| Warranty | 12 Months | Manufacturer Guarantee |
The 1000158765 crankshaft pulley assembly is manufactured using advanced casting and machining processes to ensure precise dimensions and exceptional durability. The outer ring is precision‑ground to provide a smooth, consistent surface for the serpentine belt, reducing friction and extending belt life. The integrated elastomer ring is formulated to absorb torsional vibrations across a wide frequency range, protecting the crankshaft and front engine components from harmonic fatigue. The pulley is dynamically balanced to within strict tolerances, ensuring that it spins smoothly without inducing additional vibration. The hub features a precision‑machined bore and keyway that guarantee a perfect fit on the crankshaft, eliminating play and ensuring accurate timing. Each assembly is inspected for dimensional accuracy, balance, and elastomer integrity, guaranteeing that the 1000158765 meets HOWO’s stringent quality standards. This engineering excellence translates into a pulley assembly that delivers consistent, reliable performance, keeping your engine’s accessory drive system running smoothly and efficiently.
The 1000158765 crankshaft pulley assembly is specifically designed for HOWO heavy‑duty trucks equipped with MC11 or MC13 engines, including T7H, A7, and derivative models. It directly replaces the original pulley with identical dimensions, bore size, and keyway configuration, ensuring a straightforward bolt‑on installation without modifications. The assembly is compatible with all factory‑specified serpentine belts and accessory drives. This pulley is also compatible with many Sinotruk and other commercial vehicles that share the same front‑end accessory drive architecture. To confirm fitment, always cross‑reference the OEM number on your existing pulley with 1000158765. If they match, this component will integrate seamlessly. Keeping this pulley in your spare parts inventory enables rapid engine repairs, minimising downtime and preserving the performance and reliability of your vehicle’s accessory drive system.
HOWO T7H
Primary Fitment
HOWO A7
Also Compatible
MC11/MC13
Engine Series
Direct Replacement
No Modifications
Replacing a worn or damaged crankshaft pulley with the 1000158765 immediately restores the integrity and performance of your engine’s accessory drive system. The precise alignment and balanced design ensure that the serpentine belt runs smoothly, reducing the risk of belt slippage and premature wear. The vibration‑damping properties of the integrated elastomer ring protect the front main bearing and other engine components from harmful torsional vibrations, extending their service life. The result is quieter, smoother engine operation, improved accessory performance, and enhanced overall reliability. For fleet operators, a reliable crankshaft pulley reduces unexpected breakdowns, lowers maintenance costs, and ensures that your vehicles remain on the road longer. By investing in the 1000158765, you guarantee that your HOWO engine delivers consistent, dependable performance, mile after mile.
Installing the 1000158765 crankshaft pulley assembly requires careful attention to detail. Begin by safely supporting the vehicle and removing the accessory belt. Use a suitable puller to remove the old pulley, taking care not to damage the crankshaft or key. Clean the crankshaft snout thoroughly and inspect the key for wear. Apply a thin layer of anti‑seize compound to the crankshaft and keyway. Install the new pulley, ensuring that the key is properly aligned and the pulley is seated fully. Torque the retaining bolt to the manufacturer’s specification (typically 350–400 Nm) using a torque wrench. Reinstall the belt and adjust tension to the correct specification. After installation, run the engine and check for any unusual noise or vibration. Periodically inspect the pulley for signs of wear or elastomer cracking, and replace the accessory belt at the recommended intervals. With proper installation and regular maintenance, the 1000158765 will provide years of reliable service.
Pro Tip: When replacing the crankshaft pulley, it is recommended to also inspect the serpentine belt and tensioner for wear. A new belt and tensioner will ensure the entire accessory drive system operates at optimal performance. The 1000158765 is designed to work with OEM‑spec belts and tensioners; using genuine parts will prolong the life of your new pulley.
Genuine HOWO components are engineered to the highest standards, and the 1000158765 crankshaft pulley assembly is no exception. Aftermarket pulleys often use inferior materials, lack proper vibration damping, or have imprecise dimensions, leading to premature failure, belt misalignment, and engine damage. HOWO’s pulley is manufactured using the same materials and processes as the original equipment, guaranteeing a perfect fit and reliable performance. By choosing the 1000158765, you benefit from HOWO’s rigorous testing, including dynamic balancing, fatigue testing, and elastomer durability verification. This ensures that the pulley meets the demanding requirements of heavy‑duty trucking. Moreover, genuine parts are backed by a comprehensive warranty and supported by HOWO’s global network, giving you confidence in your purchase.
OEM Authentic
Factory Quality
Long Service
Extended Life
Global Standard
Trusted Worldwide
Q: Which vehicles use the 1000158765 crankshaft pulley assembly?
A: The 1000158765 is designed for HOWO T7H, A7, and other models with MC11/MC13 engines, as well as many Sinotruk trucks with the same front‑end drive system.
Q: What are the signs of a failing crankshaft pulley?
A: Visible cracks in the elastomer, belt squealing, accessory drive issues, unusual engine vibrations, or a wobbling pulley are common indicators.
Q: Can I replace just the pulley without removing the crankshaft bolt?
A: Yes, the 1000158765 is designed to be replaced without removing the crankshaft bolt. However, proper torque tools and a puller are required for a safe installation.
Q: How do I verify the correct part?
A: Check the OEM number on your existing pulley. If it matches 1000158765, this is the exact replacement. Consult your vehicle’s parts manual for additional confirmation.
Order your 1000158765 Crankshaft Pulley Assembly today! Explore our complete selection of genuine HOWO and Sinotruk engine components at Howo/Sitrak truck parts and keep your engine running smoothly and reliably.
The 1000158765 Crankshaft Pulley Assembly from HOWO is a testament to precision engineering and uncompromising quality. By choosing this genuine component, you ensure that your engine’s accessory drive system operates with the accuracy, balance, and durability required for modern heavy‑duty trucking. Whether you are a professional mechanic or a fleet manager, this pulley assembly offers the performance, reliability, and exact fit that you can count on. Trust HOWO – the benchmark for excellence in heavy‑duty truck components – and experience the difference that genuine quality makes.
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